PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-18:58:00
G01     48.0           23.9                9.4 +/-    0.75      18.8 +/-    0.75  0.090 / 0.280
G06     176.3          28.8               14.2 +/-    2.32      25.5 +/-    2.32  0.080 / 0.280
G07     147.1          10.3               15.4 +/-    4.23      42.7 +/-    4.23  0.230 / 0.340
G11     44.2           13.2                7.7 +/-    2.87      19.9 +/-    2.87  0.170 / 0.400
G13     247.7          28.8               11.7 +/-    1.24      21.0 +/-    1.24  0.040 / 0.030
G15     282.2          14.9               10.5 +/-    1.31      26.1 +/-    1.31  0.030 / 0.030
G17     317.2          77.5               12.0 +/-    0.77      12.3 +/-    0.77  0.070 / 0.080
G19     250.0          60.1               13.5 +/-    0.70      15.3 +/-    0.70  0.060 / 0.090
G28     56.7           51.7               10.6 +/-    0.91      13.1 +/-    0.91  0.090 / 0.260
G30     150.9          38.4               13.3 +/-    0.65      19.9 +/-    0.65  0.120 / 0.240